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Lemonade is yummy! Most people like sweet things. Sweetness is detected by the presence of certain molecules – and if you have a slice of lemon in your drink, its bitterness comes from molecules in the lemon too.

Receptor cells on your taste buds are looking out for the different taste molecules and if they detect them, they’ll send the information to your brain.

Do you like salt and vinegar on your chips? Saltiness and sourness come from types of molecules called salts and acids. Receptors on the taste buds are so sensitive, they can detect the tiniest amounts. So easy on the salt!

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